As the third baronet, Sir Frederick Evelyn, had no children, Sir John Evelyn, 4th Baronet, his first cousin once removed, was his nearest male heir.
He was an officer in the Royal Navy, marrying first 1815 Henrietta Harrison (born c.1778; died July 1836) and second (1836) Mary Hathaway, the widow of Southwark merchant James Thomas Hathaway and eldest daughter of John Kennedy of Sutton Coldfield.
Sir Hugh died without issue at Forest Hill, London, on 28 August 1848, aged 79, and was buried on 9 September 1848, at Wotton, Surrey.
His widow, Mary, who was born at Hoxton in 1803, died on 5 May 1883, at Eagle House, in Forest Hill, and was buried in Nunhead Cemetery.
This biography of a baronet in the baronetage of Great Britain is a stub.